Improvement in cooking-stoves



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Cooking Stove.

No. 35,905. Patented July 15, I862.

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Cooking Stqve. No. 35,905. Patentd July 15, 1862.

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UNITED STATES PATENT OFFICE.

GEORGE l/V. \VALKER, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN COOKlNG-STOVES.

Specification forming part of Letters Patent No. 35,905, dated July 15, 1862.

To all whom it may concern.-

Be it known that I, GEORGE W. WALKER, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful or Improved Portable Range or Stove; and I do hereby declare the same to be fully described in the following specification, and represented in the accompanying drawings, of which- Figure ldenotesaside elevation of the range, showing the oven and fire box doors as opened; Fig.2, a top view, and Fig. 3 a longitudinal and vertical section, of it. Figs. 4. and 5 are end views of the oven, showing the hot-air fines leading to and from the oven.

The nature of my invention consists, first, in an improved portable range having its several parts constructed,arranged, and made to operatetogether, in manneras hereinafter set forth; second, in extending the main flue around the top, the bottom, and the two ends of the oven, and a portion of the rear part thereof, whereby the heat is more thoroughly absorbed from the fuel and volatile products of combustion; third, in the application or arrangement of a register or register-plate between the fire-box and one or both ends of the oven, whereby the heat upon the articles while being cooked may be properly controlled.

In the drawings, A denotes the body of the range, which may be constructed rectangular or of any other proper shape.

B is the fire-box, which is suspended within the oven I and extends transversely across the same, as seen in Fig. 1.

O is the bottom plate of the fire-box, which is formed with'a long rectangular opening extending longitudinally thereof.

D is a grate supported on flanges extending from the under side of the plate 0, and so as to allow it to be freely moved in alongitudinal direction.

E denotes a hasp or stop bar, which is applied to the front part of the plate 0 in such manner as to allow its front part to bereadily removed from its socket, in order to permit the grate to be drawn out; but when in place it is to serve as an estopper to prevent the grate from being drawn out during the process of screening the coal. The said grate is formed of aseries of bars extending longitudinally, and has an eye or loop, F, made on its front endfor. the insertion of a hook or poker, in

order to give the grate its rectilinear movements during the operation of sifting the ashes.

G is the ash-chamber, which is disposed di rectly underneath the fire-chamber or box.

H is the fire-box and ash-chamber door, the bottom part of the same being provided with a series of air-inlet holes, a a, &c., as seen in Fig. 1.

The oven I extends underneath and on both sides ofthe fire-box, and is provided with one or more register-plates, L, which extend hori zontally between the sides of the oven'and the firebox, and are supported upon ledges or flanges extending from the said fire-box and sides of the oven,the object of such registers being to regulate the heat radiated from the firebox and top of the oven upon the top surfaces of the articles to be cooked, and thereby equalize the heat oft-he oven upon the upper and under surfaces of the articles while being cooked.

M denotes an induction pipe or passage which serves to convey the heated air from the hot-air chamber N, (arranged underneath the bottom flue of'the oven,) the same having air-inlet holes 0 c 0, arranged in it, as seen in Fig. 3, and discharge the same at or near the top part of the oven.

O is a flue, which is arranged within the oven, and has its mouth disposed near the lower part thereof, as seen in Fig. 2, the object of such being not only to create a draft through the oven, but draw away the air having the least calorie, and thereby more equalize the temperature of the oven, while at the same time the air thus drawn out not only increases the draft of the main fine, but is carried entirely around the oven again to heat the lower part and ends of the oven.

1? P denote the two doors of the oven.

Q Q Q, &c., are the boiler-holes disposed in the top plate of the range.

R is the main flue of the range, which conveys the heat and volatile products of combustion around the top of the range, the ends and bottom of the oven, and also a portion, S, of the rear part thereof, from whence it is discharged into the eduction-pipe T. Thus it will be seen that instead of conveying the heat and smoke from the fire-box by two flues, each extending down on opposite ends of the oven and uniting in a common flue under the oven and passing thence into the eduction pipe or funnel, I cause the volatile products to pass in a body,first over the top of the oven,- neXt down one end, thence under the entire bottom of the range or stove, then up the opposite end of the oven, and next into the rear chamber, S, where, after imparting its heat to the walls of such chamber, it finally escapes into the waste pipe or funnel.

U is a damper, which is placed at one end of the stove, the object of such damper being, when raised, for the purpose of creating a stronger draft during the act of kindling the fire in the fireehamber. After the fire is kindled the damper is to be closed.

By my arrangement and construction of the main fiue-viz., so asto extend entirely around the top, the bottom, and the two ends of the oven and a portion of the rear part thereof, as set forththe heat and volatile products of combustion will be more evenly distributed, while a great saving will result in the expenditure of the coal used; and, besides, by my arrangement of the hot-air-induction pipe M, so as to communicate with the hot-air chamber N (disposed under the bottom flue of the oven) and convey the heated air of such chamber into the top part of the oven, not only will a better circulation of the air in the oven result, but the air being heated before entering will not detract from the heat of the oven but rather-increase the same. By my arrangement of the ednetionilue 0 within the oven and with its month near the bottom of the same, as set forth, the same serves not only to equalize the heat in the oven by withdrawing the portions of air least heated, but conveys such air into the main draft near the top of the oven, thereby not only increasing the draft of the main flue, but such air is again passed around the oven and the heat again imparted to the oven in a very economical manner.

Having described my invention, I claim- 1. My improved range or stove, having its fire-box 13, its oven I I, fiue R, hot-air chamber N, induction-flue M, eduction-flue O, and register L, constructed and arranged in relation to each other and to operate in manner as set forth.

2. The flue It, as made to extend around the top, the bottom, and the two ends of the oven, and also aportion, S, of the rear part thereof, the same being as and for the purpose specified. j

3. I do not claim placing a partition or protcctor plate within the oven of a stove; but

what I do claim is the application or arrangement of a register or register-plate, L, to one or both spaces betweenthefire-boXand the flue R, in manner and for the purpose set forth.

eao. W. WALKER.

Vitnesscs:

F. P. HALE, J12, J. R. BAMPTON. 

